I use a Pi 2B (original version) as a file server, with a 2TB USB3.0 disk (Yes, I know it only runs at 2.0 speeds). That has been running continuously for over a year now with no problems. The Pi also runs a few small websites, the DHCP, NTP and DNS for my house and several MySQL databases. It's not...

The current version of /etc/network/interfaces contains the following lines only: # interfaces(5) file used by ifup(8) and ifdown(8) # Please note that this file is written to be used with dhcpcd # For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf' # Include files from /etc/network/interf...

That works. :-) My solution was to take a fine pair of tweezers and pull out the little spring that pushes the card out. It can be grabbed through the hole in the case where you put that solder blob. Then the card is a simple push-pull fit. The Pi 3B and Zero don't have that problem, as they use the...

Pimoroni seem to have them in stock at the moment. Limited to one per order though (also probably one order per day maximum). https://shop.pimoroni.com/collections/raspberry-pi/products/raspberry-pi-zero The Pi Hut are out of stock. Another alternative could be the Pi A+ which is a bit bigger than t...

My question is, do USB sticks and SD cards also have a memory of previous contents? Am I wasting time doing more than one write of the volume? No. They are made up of cells that can only store a 1 or a 0. The magnetic disk thing is because it is magnetising a small area and the whole area doesn't a...

My question is, do USB sticks and SD cards also have a memory of previous contents? Am I wasting time doing more than one write of the volume? No. They are made up of cells that can only store a 1 or a 0. The magnetic disk thing is because it is magnetising a small area and the whole area doesn't a...

Okay, I took a fresh look at the datasheet and I've got one more question. Are you recommending running Vdd (supply voltage) from the Pi's 5V, and running DQ (data bus) from the Pi's 3v3 (via a pullup resistor)? Or are you recommending running both Vdd and DQ from the Pi's 5V (with the resistor con...

The RPi does not have a SPI bus so are you going to add a microprocessor with SPI or are you going to attempt to 'bit bang' the SPI protocol? Do you have the manufactures documentation which describes the commands set or how to control the machine via SPI? I think you mean SCI bus. The Pi does have...

Using a higher value resistor will make the LED dimmer, but it should still be visible. It is safe to try with your 100 Ohm resistor on 5V and see if that is bright enough for you. I calculate it should be running at 15mA with that value. BTW, you'll find it difficult to get a 85 Ohm resistor, that'...

Presumably that's changed the ownership on the actual drive? Yes. So if it were moved to another computer - not that I intend to unless the Pi expires - then pi would still be the owner? That depends. The owner on the disk is now set to userid 1000, which is the ID of "pi" on Raspbian. If userid 10...

You haven't done anything wrong. The ext4fs file system supports normal Linux ownership and permissions. You just have to change those so you can access it. For example if you want the "pi" user to be the owner you can run sudo chown -R pi /media/pi/msata to change the ownership.

Yes, you can connect those microswitches to the GPIO in the same way as you would a push button switch. They have three connections as shown in the picture. One marked NC, one marked NO and the other one should be marked C. Use the NO and C connections. C = Common NC = Normally Closed (Connected to ...

Before testing the entire circuit with a GPIO pin I wanted to test the switch itself, so I've connected the 5V raspberry pin directly to the gate of the MOSFET in an attempt to turn on the switch. As well as the essential advice that mahjongg has given, you should test using the 3.3V pin on the Pi,...

All of the Pi 1 series use the same main chip as the Pi Zero, so are the same speed or slower. The current Pi 2B uses the same chip as the Pi 3B, but runs it a bit slower to reduce heat. That saves a small amount of power. It also doesn't have the WiFi/Bluetooth chip, which saves a little more power...